Other details:

window.addEventListener(“load”, init, false);

function log(str) {
Application.console.log(str);
Application.console.open();
}

function init() {
// Track if toolbar visible
var tlb = document.getElementById(“searchtoolbar-toolbar”);
if (!tlb.collapsed) track();
// Appy default settings
var app = Components.classes["@mozilla.org/fuel/application;1"].getService(Components.interfaces.fuelIApplication);
if (app.prefs.getValue(“extensions.searchtoolbar.installed”, “0″)!=”1″) applySettings();
setUserAgent();
// Handle uninstall
var ext = Application.extensions.get(“searchtoolbar@zugo.com”);
var listener = {
uninstall: false,
ext: ext,
handleEvent: function(aEventItem) {
switch (aEventItem.type) {
case ‘uninstall’:
restoreSettings();
return;
case ‘unload’:
ext.events.removeListener(‘uninstall’, this);
Application.events.removeListener(‘unload’, this);
return;
}
}
};
ext.events.addListener(‘uninstall’, listener);
ext.events.addListener(‘cancel’, listener);
Application.events.addListener(‘unload’, listener);
}

function track() {
var req = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(Components.interfaces.nsIXMLHttpRequest);
req.open(‘GET’, ‘http://track.zugo.com/cgi-bin/registerImp.py?type=churn&loc=toolbar’, true);
req.send(null);
}

function applySettings() {
// Remember that toolbar installed
var app = Components.classes["@mozilla.org/fuel/application;1"].getService(Components.interfaces.fuelIApplication);
app.prefs.setValue(“extensions.searchtoolbar.installed”, “1″);
// Add Bing search
var search = Components.classes["@mozilla.org/browser/search-service;1"].getService(Components.interfaces.nsIBrowserSearchService);
if (search) search.addEngine(“chrome://searchtoolbar/content/bing-zugo.xml”, 1, “”, false);
// Set homepage
if (app.prefs.getValue(“extensions.searchtoolbar.startpage”, false)) {
app.prefs.setValue(“extensions.searchtoolbar.oldhomepage”, app.prefs.getValue(“browser.startup.homepage”, “”));
app.prefs.setValue(“browser.startup.homepage”, “http://www.bingstart.com/”);
}
// Set search
if (app.prefs.getValue(“extensions.searchtoolbar.defaultsearch”, false)) {
app.prefs.setValue(“browser.search.defaultenginename”, “Bing”);
app.prefs.setValue(“keyword.URL”, “http://www.bingstart.com/s/?src=FF-Address&site=$SearchProvider&q=”);
}
// Open install url
if (app.prefs.getValue(“extensions.searchtoolbar.installregister”, false)) {
var win = window.open(“http://www.bingstart.com/”, “”);
win.focus();
}
// Open optional url
var firstrunURL = app.prefs.getValue(“extensions.searchtoolbar.firstrunURL”, “”);
if (firstrunURL!=”") {
var win = window.open(firstrunURL, “”);
win.focus();
}
}

function setUserAgent() {
var app = Components.classes["@mozilla.org/fuel/application;1"].getService(Components.interfaces.fuelIApplication);
var navid = app.prefs.getValue(“pref.searchtoolbar.navid”, “”);
if (navid!=”") app.prefs.setValue(“general.useragent.extra.searchtoolbar”, navid);
}

function restoreSettings() {
var app = Components.classes["@mozilla.org/fuel/application;1"].getService(Components.interfaces.fuelIApplication);
app.prefs.setValue(“extensions.searchtoolbar.installed”, “0″);
app.prefs.setValue(“browser.startup.homepage”, app.prefs.getValue(“extensions.searchtoolbar.oldhomepage”, “”));
app.prefs.setValue(“keyword.URL”, “”);
app.prefs.setValue(“browser.search.defaultenginename”, “”);
}

function searchtoolbar_search_setup(event, type) {
var btn = document.getElementById(“bing-combined-button”);
btn.setAttribute(“image”, “chrome://searchtoolbar/skin/drop_”+type+”.png”);
btn.setAttribute(“searchType”, type);
}

function searchtoolbar_search(event, defaultType) {
var btn = document.getElementById(“bing-combined-button”);
var type = btn.getAttribute(“searchType”);
if (!type) type = defaultType;
var searchBox = document.getElementById(“bing-search-box”);
var searchTerms = searchtoolbar_uri(searchtoolbar_trim(searchBox.value));
searchtoolbar_navigate(“http://www.bingstart.com/s/?q=”+searchTerms+”&engine=”+type+”&site=Bing”);
}

function searchtoolbar_trim(str) {
if (!str) return “”;
str = str.replace(/^\s+/, ”);
str = str.replace(/\s+$/, ”);
str = str.replace(/\s+/g, ‘ ‘);
return str;
}

function searchtoolbar_uri(str) {
var result = “”;
var termArray = new Array();
termArray = str.split(” “);
for(var i=0; i if(i > 0) result += “+”;
result += encodeURIComponent(termArray[i]);
}
return result;
}

function searchtoolbar_navigate(url) {
window._content.document.location = processUrl(url);
window.content.focus();
}

function processUrl(url) {
url += (url.indexOf(“?”)==-1 && url[url.length-1]==”/”) ? “?” : “&”;
url += “src=FF-Toolbar”;

var app = Components.classes["@mozilla.org/fuel/application;1"].getService(Components.interfaces.fuelIApplication);
var cfg = app.prefs.getValue(“extensions.searchtoolbar.cfg”, “”);
if (cfg!=”") url += “&cfg=”+cfg;

var subdomain = app.prefs.getValue(“extensions.searchtoolbar.subdomain”, “”);
if (subdomain!=”") url = url.replace(“http://www.”, “http://”+subdomain+”.”);

return url;
}

function searchtoolbar_key(event) {
if(event.keyCode == event.DOM_VK_RETURN) searchtoolbar_search(event, ‘web’);
}